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首页> 外文会议>2000 National Poultry Waste Management Symposium, Oct 16-18, 2000, Ocean City, MD >HEAT PROCESSING OF TURKEY LITTER FOR RE-USE AS A BEDDING MATERIAL
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HEAT PROCESSING OF TURKEY LITTER FOR RE-USE AS A BEDDING MATERIAL

机译：土耳其绒垫料的热处理工艺，可重新用作垫料

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摘要

North Carolina laws regulating poultry litter (PL) land application require that PL be applied based on crop need and PL nitrogen content with monitoring of soil P, Cu, and Zn. Even with efforts to decrease fecal nutrient excretion, there is also a need to extend the useful life of current bedding materials and to develop alternative uses of spent PL. Current systems developed by Resource Enhancement Technologies, Inc., to heat treat PL may extend bedding life and offer alternative uses of PL. This process has several potential advantages: 1) PL can be treated and re-used on the farm, 2) a product can be produced which does not have to be land applied, and 3) a product can be produced that can be moved out of the area where it is produced. The objective of this study was to determine if heat processed turkey litter (TL) can be reused as bedding for turkeys. Pine shavings (PS) which had been used as bedding to rear Large White male turkeys from hatch to 20 wks was processed at 204°and 427°C in an enclosed system. Four litter treatments (LT) were used: 1) control - new PS (T1), 2) TL processed at 204°C (T2), 3) a 70:30 (w/w) mixture of TL processed at 204°or 427°C (T3), and 4) a 95:5 (w/w) mixture of TL processed at 204°or 427°C (T4). These LT were placed in 36 floor pens in a randomized block design to provide 9 replicate pens per LT. Thirty Large White turkey hen poults were placed in each pen on day of hatch. The birds were reared to 10 wks. Mortality and feed consumption were monitored. Birds were weighed at 6 and 10 weeks of age. Period and cumulative feed conversion (FC) ratios were calculated. Regression analysis of SAS, Inc. was used for data analysis. LS Means procedure was used to separate treatment means (P≤0.05). At placement, T1 hen poults (60 g) were heavier than T2, T3 or T4 (59 g) hen poults. At 6 wks, T3 hens were heavier than Tl (1.78 kg), T2 (1.80 kg) or T4 (1.81 kg) hens. At 10 wks, there were no differences in BW (5.42 kg) among treatments. There were no differences for 6 wk (1.44) 10 wk (1.78) or 6 to 10 wk (1.95) FC. LT did not affect mortality. Litter treated by the process used for this study produces a bedding material suitable for rearing market turkeys.
机译：北卡罗莱纳州监管家禽垫料（PL）土地使用的法律要求根据作物需求和PL氮含量并监测土壤P，Cu和Zn来施用PL。即使努力减少粪便营养物的排泄，也需要延长现有床上用品的使用寿命并开发用过的PL的替代用途。由Resource Enhancement Technologies，Inc.开发的用于热处理PL的当前系统可以延长被褥寿命并提供PL的替代用途。该过程具有几个潜在的优势：1）可以在农场上处理PL并将其重新使用； 2）可以生产不需要土地使用的产品； 3）可以搬出的产品生产的区域。这项研究的目的是确定经过热处理的火鸡垫料（TL）是否可以重新用作火鸡的垫料。在封闭系统中于204°C和427°C下处理了松刨花（PS），该刨花用作从孵化到20周的大白雄性火鸡饲养的垫层。使用了四种垫料处理（LT）：1）对照-新的PS（T1），2）在204°C（T2）处理的TL，3）70:30（w / w）在204°C处理的TL混合物427°C（T3）和4）在204°C或427°C（T4）处理的TL的95：5（w / w）混合物。将这些LT随机放置在36支地板笔中，每个LT提供9支重复笔。孵化当天，将三十只大白火鸡母鸡放在每只钢笔中。鸟被养到10周。监测死亡率和饲料消耗。在6周和10周龄时对鸟类称重。计算周期和累积饲料转化率（FC）。 SAS，Inc.的回归分析用于数据分析。 LS Means程序用于分离治疗方法（P≤0.05）。在放置时，T1母鸡（60克）比T2，T3或T4（59克）母鸡重。在第6周时，T3母鸡比T1（1.78公斤），T2（1.80公斤）或T4（1.81公斤）母鸡重。在第10周，治疗之间的体重（5.42 kg）没有差异。 6周（1.44），10周（1.78）或6至10周（1.95）FC没有差异。 LT不影响死亡率。经用于本研究的工艺处理过的垃圾产生了适合于饲养火鸡的床上用品。

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